Toothbrush



FIG. 1 is a perspective view of a toothbrush showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a rear view thereof. 

CLAIM We claim the ornamental design for a toothbrush, as shown. 